HEIDENHAIN TNC 407 (280 580) ISO Programming - Manual (Page 316)

11-19
11 Tables, Overviews and Diagrams
TNC 426/TNC 425/TNC 415 B/TNC 407
11.3 Preassigned Q Parameters
Q100 to Q113 are assigned values by the TNC. These values include:
• Values from the PLC
• Tool and spindle data
• Data on operating status, etc.
Values from the PLC: Q100 to Q107
The TNC uses Q100 to Q107 to transfer values from the PLC to an NC
program.
Tool radius: Q108
The current value of the tool radius is assigned to Q108.
Tool axis: Q109
The value of Q109 depends on the current tool axis.
Tool axis Parameter value
No tool axis defined Q109 = –1
Z axis Q109 = 2
Y axis Q109 = 1
X axis Q109 = 0
Spindle status: Q110
The value of Q110 depends on which M function was last programmed.
M function Parameter value
No spindle status defined Q110 = –1
M03: Spindle ON, clockwise Q110 = 0
M04: Spindle ON, counterclockwise Q110 = 1
M05 after M03 Q110 = 2
M05 after M04 Q110 = 3
Coolant on/off: Q111
M function Parameter value
M08: Coolant on Q111 = 1
M09: Coolant off Q111 = 0